Lock



Nov. 2s, 1939. H C BLODGETT l 1 2,181,313

LOCK

Filed Aug. 22, 1938 /aa eff BY @v1/Wb@ M ATTORNEYS Patented Nov. 28,1939 V` y UNITED' STATES PATENTI cerros 2,181,313 A i,

Herbert Cady Blodgelllrtford City, Ind), as-

signorto Overhead Door. Corporation,L Hartford City, Ind.

Application Augost k22, 193s, serial No. 226,037 v 4 claims. j (orio-.1450) This invention relates to locking means for upis frequently diicult or in any event requires time Wardly or vertically opening doors such as garage and effort. doors. In such doors the locking means is fre- The embodiment f my nVeIltOIl illustrated quently rendered ineffective by obstructions: such comprises a casing consisting of the back plate 8 5 as ice and snowwhich prevent the complete closandv the housingr 9 fOIeIlClOSng the Operative 5 ing of the door, and these obstructions are freparts. This is suitabli7 mounted on the door l, the quently very dimcult to remove. means for mounting not being illustrated. The The mainV objects of this invention are: y bolt l0 is provided With a spindle Il by means First, to provide a lock for upwardly acting rof Which it is pvotally mOU-Dted Orl the Casing, 10 doors which is eiective to lock the door even the bolt being mounted to depend from the cas- 10 When it is incompletely closed. ing,- swngng in an Opening |2'provided thereto' Second, to provideA a lock of this character in the bottom of the housing member 9. which can be readily applied to a door and is efi The bolt has a laterally projecting keeper enfective as a lock Without great accuracy in its gaging portion 1.3 adapted te Swing through the mounting or application'to the door. slot i4 provided therefor in the web l5 lof the 15 Third, to provide a lock having the above adchannel track, the upper end l5 of this slotA convantages Which is comparatively simple in strucstituting a keeper which is engaged by the keeper ture and is not likely to get out of repair or beengaging face Il of the bolt. In Fig. l, the encome inoperative. i l gaging portion ofthe bolt is illustrated When the Objects pertaining to details and economies of door is completely closed.- In Fig. 2, the engag- 20 my invention Will definitely appear from the deing portion is illustrated With the door incomscription to follow. The invention is defined in pletely closed, and it Will bev appreciated that in the claims. Y n different positions 'of approximate closurethe face A structure lembodying the features of the in- Il will engage the keeper at diierent pointsalong venton is clearly illustrated in the accompanythe face.

ing drawing, in which: .f The boltv is provided with handles mand, i9,

Fig. l isa fragmentary inside elevation cfa g the handle I9 being set into a recess 29 provided door embodying thefeatures of my invention, therefor in the outer face ofthe door. The bolt partially in vertical section, With the lock in en- Y has a series of ratchet teeth' 2l adapted to be engaged or locking position. n gaged by the paWl or detent 22 Which is pivoted 30 k Fig. 2 is an enlarged fragmentary view f parat 23 andis provided With a ratchet engaging portially in section With the bolt shown in retracted tion 24 having a flat face 25 adapted to engage position by full lines and in actuated position by the coacting flat faces 26 for holding the bolt in dotted lines, the actuated position illustrating, as locked position. The lbolt also has a ratchet tooth compared With Fig. 1, substantial extremes of, 21 AWhich is faced in the opposite direction from 35 locking engagement. that of the series of teeth 2| so that when the Fig. 3 is an enlarged fragmentary view partially detent DO'IOII 24 iS engaged therewith the bolt in Section on 1in@ 3 3 of Fig- 2, the door being is positively held in its retracted or open position indicated by dotted lines, as show n in Fig. 2. Spring Hl bearing at one In the embodiment of my invention illustrated, end'agmst a pm "2 on plate and at lts other the door designated generally by the numeral l end bemg secured t0 the bolt Spmdle H Sen/'25 t0 is made up of a plurality of panels 2v having hingev retract the bolt from lokmg to Open posmon Connections 3, the pntles being provided with when the detent face 25 1s released frornratchet faces 26. rollers a which engage the channel track 6. The Key actuated means are provided for releasing 45 track is secured to the Wall 'l at theside of the the bolt from detent 22 and unlocking the door, door opemng' Doors of this type are 01d m the the said means comprising a conventional lock 28 artand a rotatable member 29 controlled'thereby. MY lmp-1' @Vea means for lockmg lhf'f door per m11; This member 29 is provided with an arm 3S which lts lockmg even wen the (1901' 1 5 mcompletely is connected by the link 3| to the detent so that 50 Closed Accumulatlons 0f dm", me and Snow the detent may be swung out of engagement With frequently Prevent Complete ClOSIlg 0f the dOOI'S, the bolt against the tension ofthe spring 32 Which such as garage doors, and render it impossible to isL arranged to urge the detent into engaging polock the doors with the means Commonly emsition. The link is offset to connect the same to ployed until the obstruction is removed, and this arm 30 and the offset portion designated 30| is 55 extended through housing 9 and provided with a knob 300 whereby the arm 30 and link 3I may be manipulated from the inner side of the door to release the detent.

In locking the door, the bolt is released by means of the key. By manipulating one of the handles, the operator swings the bolt into lockir'ig engagement with the keeper, the detent ratchetng along the ratchet teeth according to the position of the bolt. Ater the door is completely closed, the bolt assumes the position shownin Fig. l, but if the door is not completely closed it assumes a position with the bolt in engagement with the keeper at some intermediate point of the bolt face I'I.

To release the door, the key is operated to retract the detent 24 and the bolt is swung out of engagement by the spring I I I.

The above described locking mechanism, it will be observed, is in the form of a simple, compact, self-contained .unit which may be readily and quickly applied to a door while on the job, it being necessary only to attach housing 9 and plate 8 to the door in proper registry with the keeper opening I4. This eiects a great saving in erection cost.

I have illustrated and described a practical embodiment of my invention. I have not attempted to illustrate or describe certain modifications and adaptations which I contemplate, as it is believed this disclosure will enable those skilled in the art to embody or adapt my invention as may be desired.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. The combination with a keeper, of a lock casing, a bolt pivotally mounted in the casing to depend therefrom and provided with a lateraln ly projecting keeper engaging portion, said bolt being provided with a series of ratchet teeth and with an individual ratchet tooth substantially spaced from the series of ratchet teeth, a bolt detent pivoted within the casing to coact with said series of ratchet teeth or with said individual ratchet tooth and acting when engaged with said individual ratchet tooth to hold the bolt in retracted position and coacting with said series of teeth to hold said boit into the 'keeper in a plurality of locking positions, and key actuated means for releasing said detent.

2. The combination with a keeper, a lock casing, a bolt pivotally mounted in the casing to depend therefrom and provided with a laterally projecting keeper engaging portion, said bolt being provided with a plurality of ratchet teeth, a bolt detent pivoted within the casing to coact with said ratchet teeth for holding said bolt into the keeper in a plurality of locking positions, a rotatable key actuated member provided with an arm, and a link connecting said arm to said detent for disengaging the detent from said bolt, the bolt pivot being provided with a handle at each side of the door.

3. In a lock for vertically opening doors, the combination with a iixed member adjacent the path of travel of the door having an opening therein one end of which constitutes a keeper, of a bolt pivoted to the door and swingable into and out of engagement with said member and keeper, said bolt being provided with a handle for manual manipulation and having a keeper engaging portion of substantial length adapted to engage at one point or another with said keeper to lock the door, a spring actuated detent coacting with said bolt to hold said portion against the keeper in a plurality of keeper engaging positions when the door is ineompletely closed and also adapted to hold the bolt in retracted position, and a key actuated means for releasing said detent.

4. In a lock for vertically opening doors, the combination with a fixed member adjacent the path of travel of the door having an opening therein one end of which constitutes a keeper, of a bolt pivoted to the door and swingable into and out of engagement with said member and keeper, said bolt being provided with a handle for Inanual manipulation, and having a keeper engaging portion of substantial length adapted to engage at one point or another with said keeper to lock the door, a spring actuated detent coacting with said bolt to hold said portion against the keeper in a plurality of keeper engaging positions, and a key actuated means for releasing said detent..

HERBERT CADY BLODGETT. 

